Scalability & Performance
Design systems that handle millions of users without buckling. Learn how to measure, identify bottlenecks, and scale every layer of the stack.
Performance Optimization: Profiling, Caching, and Latency Reduction
Learn techniques to optimize system performance including caching strategies, database optimization, CDN usage, and profiling tools.
Scaling Strategies: Horizontal vs Vertical, Sharding, and Auto-Scaling
Learn how to scale systems to handle millions of users. Cover vertical and horizontal scaling, database sharding, caching strategies, and auto-scaling patterns.
Database Scaling Patterns: Replicas, Shards, Pools, and Query Tuning
Master database scaling with read replicas, sharding, materialized views, denormalization, connection pooling, and query optimization techniques.
Rate Limiting and Throttling: Protecting Systems Under Load
Learn fixed window, sliding window, token bucket, leaky bucket, distributed Redis rate limiting, throttling, quotas, and graceful degradation strategies.
Observability and Monitoring: Logs, Metrics, Traces, SLOs, and Alerts
Build production observability using structured logs, RED and USE metrics, distributed tracing, OpenTelemetry, dashboards, alerts, SLOs, SLIs, and health probes.
Content Delivery and Edge Computing: CDN, Geo-DNS, and Edge Caching
Design global low-latency systems with CDNs, static and dynamic caching, edge compute, geo-DNS, cache invalidation, and origin protection.